Iran said Sunday it was closing the Strait of Hormuz and launched missiles and drones at Gulf neighbours after the US carried out a new round of strikes as their conflict escalated.
The latest exchange of fire was sparked by another Iranian attack on a commercial ship in the strait, whose crew were forced to abandon the vessel after it went up in flames.
The escalation is the latest to undermine an interim agreement between Washington and Tehran aimed at ending their war, which broke out in late February with US-Israeli strikes that killed Iran's supreme leader.
Mediators have been trying to salvage a diplomatic solution after President Donald Trump this week declared a ceasefire over.
"Following this incident... the Strait of Hormuz will be closed until further notice and until the end of American interventions in this region," Iran's Revolutionary Guards said Sunday, according to state news agency IRNA.
